28780140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{367}}^1\times {\mathrm{1307}}^1$

素因数の和:1686

約数の個数: 48

約数和(自身を含む): 80865792

約数和(自身を除く): 52085652

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 367, 734, 1101, 1307, 1468, 1835, 2202, 2614, 3670, 3921, 4404, 5228, 5505, 6535, 7340, 7842, 11010, 13070, 15684, 19605, 22020, 26140, 39210, 78420, 479669, 959338, 1439007, 1918676, 2398345, 2878014, 4796690, 5756028, 7195035, 9593380, 14390070, 28780140]

約数ペア:

[(1, 28780140), (2, 14390070), (3, 9593380), (4, 7195035), (5, 5756028), (6, 4796690), (10, 2878014), (12, 2398345), (15, 1918676), (20, 1439007), (30, 959338), (60, 479669), (367, 78420), (734, 39210), (1101, 26140), (1307, 22020), (1468, 19605), (1835, 15684), (2202, 13070), (2614, 11010), (3670, 7842), (3921, 7340), (4404, 6535), (5228, 5505)]